TKPROF Stands for Transient Kernel Profiler It allows you to analyze a trace file to determine where time is being spent It converts SQL trace files into human readable format. To activate SQL trace for a particular session Full article link is here: https://www.support.dbagenesis.com/post/oracle-tkprof-utility

1. ORACLE
TKPROF
UTILITY

2. TKPROF Stands for Transient Kernel
Profiler
It allows you to analyze a trace file to determine where
time is being spent
It converts SQL trace files into human readable format.
To activate SQL trace for a particular session:

4. Trace File Location
The name of the trace file is <Oracle_SID>_ora_<p.spid>.trc under
UDUMP location:

5. Run TKPROF

6. READING TKPROF
REPORT
PARSE: Oracle finds query in shared pool or creates a new plan
EXECUTE: Does the work of query. It is empty for SELECT statement.
FETCH: Pulls the data back, empty for update, bulk of work for select

7. Count: How many times each activity has been
performed
CPU: CPU time used by the query
ELAPSED: Wall clock time spent
DISK: Physical I/Os to disk
Query: Blocks read from rollback / undo
Current: Blocks as they exists now
Rows: Number of rows affected

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